Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Replace the question mark with the correct number in below Picture:

What seven-letter word has hundreds of letters in it?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

Find the next number in the sequence

1, 2, 6, 21, 88, __?

How many times can you subtract the number two from the number fifty?